Air and gas mixing device.



31. w. wniRwAx. AIR AND GAS MIXING DEVICE. APPLICATION FILED. JUNE I0. I9lB.

vPatented Feb. 25, 1919.

R.' w. W|EDERwAx VAIR AND GAS MlxlNG DEvxcE.' APPLICATION FILED JUNE- 10. 19,18. --J Y "Patented Feb. 25, 1919.

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.22; Wgzgfwgx; @i A I TED STATES PATENT ROBERT W. WIEDERWAX, OF ATLANTIC CITY, NEW JERSEY, ASSGNOSJ 0F GNE-JS1LF TO CARLTON GEIST, OF ATLANTIC CITY, NEW JERSEY.

AIR AND GAS MXNG Didi/'ECE Specification of Letters Eatent.

Fatentetl Feb. 2o, 12in..

Application tiled .Tune 1), 193.8. Serial No. 232.265.

To all whom t may concern:

Be it known that I, ROBERT lV. WIEDER- WAX, a citizen of the United States, residing at Atlantic City, in the county of Atlantic and State of New Jersey, have invented certain new and useful improvements in Air and Gas Mixing Devices, of which the tollowing is a speciiication.

My invention relates to air and gas mixing devices, for use in connection with burners.

An important object of the invention is to provide means of the above mentioned character, having parts which are readily adjustable for effecting the combination of the proper relative volumes of air and gas, with the gas supply valve partly or wholly open. V

A further object of the invention is to provide apparatus of the"V above mentioned character, having a largerange of adjustment, to obtain a perfect gaseous fuel or mixture. n

A further object of theinvention is to provide means to eil'ect an automatic control and mixture of'aperfect gas supply under all conditions, by the turning oi a single crank or element.

A further object of the invention is to provide apparatus of the above mentioned character lwhich is simple in construction, inexpensive to manufacture, and may be conveniently adjusted.

Other objects and advantages ofthe invention will' be apparent during the course of the following description.

In the accompanying drawings formingr a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of apparatus embodying my invention,

Fig. 2 is a central vertical longitudinal i section through the apparatus, parts in eleisi;

vation,

Fig. 3 is a front elevation of the device,

Fig. 4 is a front elevation of the valveplate and associated elements, showing the air opening closed or covered, and,

Fig. 5 is a similar view showing the air opening. uncovered.

In the drawings, wherein for the purpose of illustration is shown a preferred embodimentof my invention, the numeral 5 designates a gas manifold, having connection with a suitable source of number oi" my air and mining; devices may be connected with maniffold and for the purpose of illustration only one device will be described.

My air and gas mixingn apparatus coni-- prises a main easing 6, which preferably cylindrical and horizontallyarranged. Th" casing),V is provided upon its lower side w a tubular extension or neck 7, havingl a flange S, arranged upon a 'lange fl, and detachably secured thereto by screws 7.0 or the like. The flange 9 is formed upon a tubular neck or extension 10, carried by the as manifold 5.

One end of the casing d is covered by a plate l1, detachably secured thereto by screws 12 and which is used as a Clean ont plate. The opposite end of casing is covered by a removable plate or head 113, having a segmental air supply opening;z ifi, formed' therein. |This plate 13 has an annular flange 13', receiving one end of the main casingy 6. and screws 14', serve to detachably secure the flange to the casing. The ,numeral 15 designates a rotatable valve plate, having an annular flange 16. pivotally receiving the annular flange 13. The'valve plate 15 has a segmental opening 17, formed therein, adapted 'for movement into and out of registration with 'the openinga 14.,

The numeral 18 designates an, upper ing. preferably horizontally arranged and connected with the lower casing; by means oi' a tubular portion 19. of the upper casing 18 is adapted 'for ce.;n nection with a burner or burner tip or with a pipe leading to the same, while the epposite end of the casing 18 is open and i covered by a plate 21, detachably secured thereto by screws 22 or the like.

Arranged within the casing' 'd is f. zontal valve 23, embodying a cas which is `connected with vertical pipes .J5 and 26, as shown. The lower end oi the pipe y26 has screw-threaded engagement within Pr e: l e:

ing a handle or crank 35 rigidly secured thereto. The valve stein is pivotally mounted within an opening 36, formed in the plate 13 and the valve plate 15. The valve plate 15 is free to turn upon the stem 34'.

Rigidly secured to the stem 34 is a crank or arm 37, having a head 38, provided with a screw-threaded opening, receiving apin 39, having a head 40, to turn the same. The pointed end of the pin is adapted for insertion within a selected recess or depression 41, a series of which is formed upon the outer face of the valve plate 15 near its periphery. It is thus apparent that the stem turns the valve' element 28 and the valve plate 15 simultaneously and that by manipulation of the screw 39 the valve plate may be adjusted independently of the valve stem 34, for obtaining the proper relative volume of air and gas.

The numeral 41 designates an adjusting gas valve, as a whole, embodying a casing 42, having an outlet opening 43, which is partly or wholly closed by an inlet valve 44, having screw-threaded engagement with the rear end 45 of the easing 42. This inlet valve has a stem 46 extending through a eentral opening in the plate 2l, and forming a substantially gas tight lit therewith, and provided with an exterior head or nut 47 to turn the same. The casing 42 is screwthreaded upon the upper end of the pipe 25, as shown. The gas adjusting valve 41 is mounted cent-rally within the upper casing 18, as shown.

The operation of the device is as follows:

The inlet valve 44 is adjusted to regulate' lar case. This permanent adjustment having been made, the crank 35 is swung upwardly or to the right, opening the valveb23, and simultaneously turning the valve plate 15 but not sufficiently to uncover the opening 14. The crank 35 is so arranged and synchronized with the adjusting gas supply valve 41 and the'valve plate 15, that gas alone will first pass to the burner and be i ignited, prior to the introduction into the burner of air. One movement of the crank 35 uncovers the opening 14 and air in sufficient quantities is supplied to the gas, to produce a gaseous fuel, lean or rich as may be desired. This gaseous fuel passes to the burner and is of course controlled in volume by the manipulation of the crank 35, as is obvious. ln use, the crank 35 controls automatically the supply of gas and air and no adjustments are necessary, the crank 35 supplying the proper mixture at all times.

The adjustments are made in advance of the use of the device, by themanipulation of the gas supply needle valve 41 and the valve plate 15. These are then synchronized by the crank 35 and the crank 35 ythereafter absolutely and Wholly controls the operation of the device in one movement. By this synchronized adjustment' gas flows first alone, because the gas port opens first as the crank is moved, not as a result of two movements Having thus described my invention, I

claim:

. 1. A device of the character described, comprising a casing, a pivoted valve plate to control the [iassage of air into the casing, a valve to control the supply of gas to the air within the casing, a member to operate the valve, and an adjustable device serving to positively connect the member and valve plate whereby the valve plate is turned in opposite directions by the member. said device upon adjustment permitting of the turning of the pivoted valve member.

2. A device of the character described, comprising a casing having one end provided with an air inlet, a pivoted valve plate having an annular flange to receive the said end of the casing and having an opening adapted for movement into and out of' communication with the air inlet', said pivoted valve plate being provided near its cenf ter with a pivot opening andnearv;its per riphery with aset .of spaceddepressions, a valve arranged within the casing and having a stem projecting through the pivot opening, means to turn the stem, a crank secured to the stem, and an element having screw-threaded engagement with the crank and adapted to have one end thereof inserted within a selected depression.

3. A burner of the character described, comprising a casing, a gas valve associated therewith, a pivoted valve plate carried by one end of the casing, a stem to turn the gas valve and extending centrally through the valve plate and arranged at substantially a right angle thereto, a crank carried by the stem and extending substantiallyradially of the valve plate, and an element secured to the crank and engaging the valve plate and adapted to be longitudinally adjusted with relation to the crank.

4. A burner of the charactendescrbed,

plate with relation to said comprising a easing, a gas valveassooiated therewith, a pivoted valve plate carried by one end of the casing, a stem to turn the gas valve and extending substantially centrally through the valve plate and arranged at substantially a right angle thereto, a'

crank carried lby the stem and extending sulostantiallj1 radially of the Valve plate, and an element having screw-threaded engagement with the end portion of the crank 10 and adapted to be moved into and out of holding engagement With the valve plate.

In testimony whereof I affix my signature in presence of two Witnesses.

ROBERT W. WIEDERWAX.

Witnesses:

EMMA H. YARD, THEO. W. SHIMPF. 

